User manual KYOCERA KD135GX-LPU INSTALLATION

[. . . ] When handle the modules, DO NOT HOLD THEM BY SUPPORTING ONLY ONE SIDE OF THE LONG FRAME BECAUSE IT CAN CAUSE SEPARATION OF THE GLASS AND FRAME. CAUTION 2. APPLICATIONS KDxxxGX-LPx series modules are a reliable, virtually maintenance-free direct current (DC) power source, designed to operate at the highest level of efficiency. KDxxxGX-LPx series modules are ideal for remote home, water pumping, utility-tied, telecommunications and many other applications either with or without using storage batteries. FIRE RATING In case of roof installation, PV module assembly shall be mounted on a fire resistant roof covering rated for the application. KDxxxGX-LPx series modules are comprised of a glass front surface, polyethylene terephthalate (PET) backsheet with a Class C fire rating. [. . . ] A minimum of . 13" (3. 2 mm) spacing must also be maintained between module frames to allow for thermal expansion. KDxxxGX-LPx series modules may be attached to a support structure by the following methods. When installing modules in snowy area, an appropriate countermeasure has to be taken to prevent possible damages to the lower side frame by slipping snow (e. g. Any damage caused by snow or such countermeasure is not covered under warranty. BOLTING: Utilizing 5/16" or 8 mm steel hardware structure through the existing . 35" (9 mm) diameter mounting holes in the module frame and then through KDxxxGX-LPx series module mounting holes on the support structure. Support structure should have enough strength to keep the mounting span. Refer to the Module Drawings for the position of PV module mounting holes. wiring is solely for series connections only, i. e. Series and parallel connections shall be made by use of two #10-14 AWG type PV-wire stranded sunlight resistant and insulated for 90 minimum output cables with male and female Multi-Contact locking connectors. NOTE: When making connections with Multi-Contact connectors, make sure the array is disabled. Module output connections are marked "Do not disconnect under load". KDxxxGX-LPx series modules and most PV system components have a maximum system voltage rating of 600 volts DC. Like other polycrystalline the PV modules, the open circuit voltage of the KDxxxGX-LPx series modules increases as the ambient temperature decreases. Maximum system voltage is computed as the sum of the open-circuit voltage of the series-connected PV modules for the lowest expected ambient temperature. Refer to the National Electrical Code Article 690-7(a) for determining the maximum number of KDxxxGX-LPx series modules that can be placed in series. Temperature coefficients, specific to the module of use, can be used to provide the most accurate prediction of module voltage under temperature extremes. NOTE: Install the maximum number of series connection for the KDxxxGX-LPx series modules so that the system voltage is less than 600 V. NOTE: Do not connect the modules in parallel without maximum over current protection. NOTE: The minimum diameter that the cable can be bent for the KDxxxGX-LPx series modules is 1. 93" (49mm). NOTE: In normal conditions, PV modules may produce larger current and / or voltage than reported in the standard test conditions. Therefore, when voltage evaluations for components, capacity of conductors, size of fuses, and size of control systems connected to the module output are determined, multiply the values of short- circuit current (Isc) and open-circuit voltage (Voc) that are marked in KDxxxGX-LPx series modules by the coefficient, 1. 25. NOTE: Refer to Section 690-8 of the National Electrical Code for an additional multiplying factor of 125 percent (80 percent derating) which may be applicable. 8. GROUNDING Before installation, contact the local code authorities to determine the necessary grounding requirements. When installing in US market, attach all PV module frames to an earth ground in accordance with the National Electrical Code (NEC) Article 250. [. . . ] The current forced through the shaded cells within PV module (or modules) causes additional module heating and severe loss of power. All KDxxxGX-LPx series modules are supplied with factory installed (non user serviceable) bypass diodes. The purpose of bypass diodes is to provide a low-resistance current path around the shaded cells, thereby minimizing PV module heating and array current losses. PV modules employ bypass diodes that have: Rated Average Forward Current [IF(AV)] Above maximum system current at highest PV module operating temperature. [. . . ]